Jack for automobiles and the like.



J. ARCHER & G. CLARK.

JACK FOR AUTOMOBILES AND THE LIKE.

- APPLICATION FILED APR. is. 916.

fatented Apr. 9, 1918.

Witnesses Inventors Attorneys Witnesses ARCHER & G. CLARK.

JACK FOR AUTOMOBILES AND THE LIKE.

APPLICATION FILED APR. 18. 1916.

Pat ented Apr. 9, 1918.

2 SHEETS-SHEET 2.

- JOHN ARCHER AND GEORGE CLAItK, OF CLINTON, INDIANA.

.TAoK ron AUTQMQBILES ANn THn LIKE.

To all/whom it may concern: W V

Be-it known that we, JOHN ARCHER and GEORGE CLARK, citizens of the United States, residing at Clinton, in the county of Vermilion, Stateof Indiana, have invented a new and useful Jack for Automobiles and the like, ofwhichthe following is a specification.

This invention relates to jacks for sup porting automobiles and the like with their wheels out of contact with the ground.

One of the objects of the invention is to provide a simple form of jack which will be operated by the impact of a vehicle thereagainst to automatically lift the vehicle from the ground and to hold it in its elevated position until it is desired to lower it, means being employed for locking the parts against movement when the vehicle is elevated;

' Vith the foregoing and other objects in view which will appear as the description proceeds, the invention resides inthe combination and arrangement of'parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise "embodimentof the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit ofthe invention.

In the accom anying drawings the preferred form 0 the invention has been shown.

In said drawings Figure 1 is a central vertical longitudinal'section through the jack and showing the parts in their normal positions prior to the elevation of a vehicle.

Fig. 2 is a plan view.

Fi 3 is a view similar to Fig. 1 and showing the relative positions of the parts while a vehicle is being supported out of contact with the ground.

Fig. 4 is a section on line A-B Fig. 3. V

Fig. 5 is an end elevation of the structure with the parts in the positions shown i n Fig. 3. 7

Referring to thefigures by characters of reference 1 designates the side boards of the base frame, these boards being placedon edge and being connected at their ends by cross strips 2 and 3 respectively, one or more upstanding reinforcing strips at being employed. The corners of the side boards Specification of Letters Patent.

Application filed April 18, 1916. Serial No. 91,984.

Patented Apr. 9, 1918.

above the cross strip 2 are cut away to form inclines 5 and upstanding from the side boards near the, upper ends of the inclines 5 are stop posts 6. V

Blocks 7 having inclined upper edge's are secured upon the Sideboards 1, the'said in-.

clined upper edges being substantially parallel wi th the inclines 5. Stop posts 8'. are provided at the lower ends'of the inclined blocks 7 Resting on the blocks 7 is a roller 9Iwhich can be formed of a length of gas'pipeand which projects at its ends beyond theside boards 1. Another similar roller 10 is mounted onthe inclines 5. Supported by the rollers 9, and 10 is a movable frame 11 thefront portion of which rests on the roller 9 while blocks 12 having downwardlyand rearwardly inclined lower edges are secured to the rear portion of this frame 11 and bear on the roller 10. Retaining strips 13 are se-v cured to the sides offrame 11 close to the blocks 12 and lap the 'side boards 1 so'as to hold frame- 11 against lateral displacement relative to saidside boards. Lugs 14 extend upwardly from the sides of frame 11 near the front end thereof, preferably directly above the roller 9 and are of such size that when the frame 11 is in its lowermost position with roller'9' bearing against the stop post 8, the front axle X of a vehicle moving on to the, jack will come against said lugs as shown by dotted lines in Fig. 1.

A cross rod 15 is supported above the cross strip 3 by posts 16 and hingedly connected to the front end of the movableframe 11 are latch strips 17 which may be connected by a cross strip 18. These latch strips have notches 19 designed to receive the cross bar 15 and hold the frame 11 against backward movement after said frame has been moved longitudinally a predetermined distance in one direction.

A lever 20 is hingedly connected to the cross strip 3 and is connected by a link 21 to the front end of the frame 11. Guide posts 22 extend upwardly from the side boards 1 and lap the front end portion of the frame 11.

Under normal conditions the lever 20 is elevated and the latch members 17 are dis engaged from the rod 15 while the roller 9 engages the stop posts 8 and roller 10 is in terposed between the rear portions of the inclines 5 and the blocks 12. It might be will;engagethe cfoss' fod 15 Wit the 7 mes 7 cans ingthe rollers-9" stated that if desired any suitable retaining. means, such cross strip 23 maybe em ployed for holding ther'one'r '10 in p'os'itioii'" rsi-esaame r ib gaaamanyasa eaasetae rd'l' ei 9 warmerup he blocks? a r-id the ro'ller 10 'to"ti*avel npwa'idlf" along; the inclines 5. The momentum iinifiarted will" be ths rrains ir upwardl tliflfi lil wilhbejlock'ed in elev ed positioii andthe vehiclewi'll be 'su-p'ribi of contact With the ground.

During;

easement-er amenlever-ensuresswun ar'dly' emo che mmdz The roller 9 Willmo *emifvrardlv" onto the"'htirihontal upperend "races of th'ebl-hck's 7, Whileroller 10": '11 move aw-army onto the heriz'ontal eegeaportiensof the -side btSa-frd's 1.

qut' 'o'f'en a a lever 201s swung upwardly? and bacli/vafdly afidvia-11 thrust; thre-ngh link-2 1 a g'ainst frame- 1 1f; and-arm's a rearvvaraly; thereby V waraiytotlieir a'ormaipesaioss magmawith the heels extending. at I dont r l n t'est mo" the la c n -awe 1r lifted g me-1awith bar 15-, wiisrsep'on ually bring the vehicle in position on the ropnd.

f will" Be-*-seeir-tli'ac th'eentire structure can-be cheaplymanufactured and will be simplein cofistriib'tion and efficient in oper- Qllx; v

What is claimed is:

A j'aek;:con1 prising a base frame having inclined ends, rollers extending transversely o1: the frame and supported on theinclines, a mevablef frame an inclined zend wa ed as n wsman-ted 011* rollersgiposts to" aiidflrisifig. fro he; V ream and adapted to enibr and: gu i'd'e thc meatleframe and limit? th'e movement' of the rollers, means on the movable frame-for eemaenng s veh' icle' axle', coip'eratmg rneans tion between the'lever an'di the other "frame foi shifting the-i movable frame out of its raised pesiti'enwhen-released. V

that we; 'cl'aim therdregm as our oti'r'n ;-vvf'eha ve hereto a ifixed our signatii-resin the presence-of twowitnesses.

GEORGE CEARK'.

inclined end; of the-main 

